baber/WOPTO huggingface dataset:
Patent GB-568972-A (GB)
Title: Improvements relating to electric tumbler switches
IPC: H01H23/12
Filed: 1943-11-25
Abstract: 568,972. Tumbler switches. ALLDAY & SON (1922), Ltd., H., and BAIN, R. Nov. 25, 1943, No. 19721. [Class 38 (v)] A quick-make, slow-break switch comprises a tumbler lever, the side limbs d<1> of which are slotted to provide an arcuate track g<1> concentric with the lever-pivot d<5>, along which track a roller contact e is slidable under the action of a dead-centre spring h, into and out of engagement with one or more fixed contacts b. In moving from the position shown, the speed of the contact e initially depends on the operator, but when the spring h crosses the dead-centre, by which time the lever is near its opposite extreme position against the base a, a rapid movement of the contact follows. In Fig. 3, the track g<1> is formed in the lower edges of the side limbs d', and the fixed anchorage j of the spring h engages slots i in the limbs d<1> to limit the travel of the lever.
Patent GB-223002-A (GB)
Title: Improvements in means for producing power for use on board ships
IPC: B63H19/04
Filed: 1923-08-02
Abstract: 223,002. Pikoulis, D. Aug. 2, 1923. Power, obtaining from ship's way.-Installations for obtaining power from the way of a ship for driving auxiliaries comprise a watertight casing D in which is situated a casing C of a turbine and its inlet passage E, F, to which pass the trumpet-shaped bow tube A and the outlet tube G respectively, both tubes containing slide control valves. The turbine shaft H<1> extends through a stuffing box h in the tube G and carries a bevel wheel which gears with a wheel on a vertical shaft K. From this shaft power is taken off for driving an electric generator, pumps, and other auxiliaries.
Patent GB-1509144-A (GB)
Title: Avalanche photodiode
IPC: H01L31/107
Filed: 1976-05-13
Abstract: 1509144 Avalanche photodiodes THOMSONCSF 13 May 1976 [16 May 1975] 19847/76 Heading H1K Avalanching in an avalanche photodiode is restricted to a portion of the pn junction by the provision of a highly doped insert 2 in one of the regions defining the junction. Preferably the region 3/4 exposed to incident radiation is of a material having a higher bandgap than at least the other junction defining region 1 and optionally also than the insert 2, so as to be transparent to the radiation. In Fig. 2 the p<+> insert 2 is very thin ( # 0À1 microns), so that radiation is absorbed only in region 1, the diode polarity being such that photo-generated holes pass, under reverse bias, into the insert 2, where they initiate avalanching. In Fig. 3 the n<+> insert 2 is thicker (1-2 microns) and absorbs radiation directly, photo-induced holes once more initiating avalanching under reverse bias. The higher bandgap material may be Ga0À8 Al0À2As, the lower bandgap material being GaAs.
Patent GB-874428-A (GB)
Title: Improvements in fuel injection systems for internal combustion engines
IPC: F02M31/16
Filed: 1958-06-20
Abstract: 874,428. Fuel injection systems. BEDE, J. A. June 20, 1958, No. 19890/58. Class 7(3). In a fuel injection system the fuel is first heated in a pre-heater 39, Fig. 3, and then heated again by heating means 34, Fig. 2, associated with the injecter. The fuel, which has a major component having a flash point of at least 220‹F. and a minor component having a flash point not greater than 140‹F., is heated under pressure to a temperature above the lower flash point component, the pressure being sufficient to maintain the fuel liquid, whereby on injection the vaporization of the lower flash point component breaks up the remaining liquid fuel into droplet form. The fuel is delivered to the injectors 15 under a pressure e.g. of 500-600 p.s.i. by a pump 36, Fig. 3, through a pre-heater 39 which heats it to about 120‹F. The injecters have a fuel delivery spare 25 surrounded by a heating chamber 34 to which oil heated by an electrical heater 42, Fig. 3, is delivered by a pump 40, the oil heating the fuel in the injecters to a temperature of about 200‹F. before injection. The injection valves 26, Fig. 2 are opened by levers 28, Fig. 1, actuated by cranks or eccentrics 32 and the injecter bodies are surrounded by insulating air spaces 18.
Patent GB-233950-A (GB)
Title: Improvements in artificial limbs
IPC: A61F2/64
Filed: 1924-08-23
Abstract: 233,950. Burlton, R. F. Aug. 23. 1924. Limbs, artificial.-The knee joint of an artificial leg is provided with frictional braking device which allows the lower leg member to move forwards but exerts a uniform braking action when the lower member tends to move backwards. The braking action can be overcome without external or hand-operated means when it is desired to bend the leg. As shown in Fig. 1 the braking device comprises a drum 3 mounted on the knee pivot 1 and secured to one of the leg members. A band 4 encircles the drum and is fixed at 5 to the other leg member. The other end of the band is fixed to the same leg member through a spring 7 which may be of the tension type as shown in Fig. 1 or the compression type as shown in Fig. 2. When the lower leg member moves forward the spring 7 allows the band to slip round the drum but a backward movement of the leg causes the band to bind on the drum. The friction between the band and drum can be overcome bv the application of sufficient force when it is desired to bend the leg, such force being exerted for example by the pressure of the foot upon the ground.
Patent GB-919133-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F01L3/20
Filed: 1961-06-02
Abstract: 919,133. Valves. INNOCENTI SOC. GEN. PER L'INDUSTRIA METALLURGICA E MECCANICA. June 2, 1961 [June 15, 1960], No. 20044/61. Addition to 883,541. Classes 7(2) and 7(6) In a modification of the two stroke internal combustion engine described in the parent Specification, an engine having one or more pairs of parallel cylinders has a pair of separate fuel mixture control valves in association with each pair of adjacent cylinders, each pair of valves comprising two separate mutually aligned valve bodies 23 having their axes lying in a plane perpendicular to the crank-shaft on the opposite side of the crank-shaft to the cylinders, both valves of each pair of valves feeding, alternatively either one or the other cylinder of the pair of adjacent cylinders. Specification 919,132 also is referred to.
Patent GB-491750-A (GB)
Title: Improvements in toy building blocks
IPC: A63H33/06
Filed: 1937-07-21
Abstract: 491,750. Toys. PEDERSEN, K. O. J. July 21, 1937, No. 20133. [Class 132 (iii)] A set of building blocks for constructing toy buildings, mills, hoists and aeroplanes comprises plate-shaped blocks, such as shown in Fig. 1, having grooves b and projections a of the same width and depth along the longitudinal sides, and blocks such as shown in Fig. 5 having at their ends two projections g of the same size as the projections a and separated by a groove f of twice the width of the grooves b. The blocks, Fig. 1, may have central projections d of two groove widths and the width c between grooves b on opposite sides of the block is two groove widths. The blocks, Fig. 5, may have grooves h in their sides, having twice the width 'of a groove b. Thicker blocks, Fig. 11, are also provided on which are formed projections k and grooves b corresponding to those shown in Fig. 1, and double width recesses l in the middle of each side. A central hole m is also provided to take a peg. The block shown in Fig. 13 has a central hole n and four elongated projections o corresponding to the projections a and between which are double width grooves p into which fit blocks, Fig. 14, provided with oblique grooves q receiving wings of toy aeroplanes. The block shown in Fig. 19 is provided with a peg r corresponding to the projections a and a recess s receiving a disc having a central hole for an axle which fits into holes t in the block.
Patent GB-277789-A (GB)
Title: An improved device for use in playing a throwing game of skill
IPC: A63F9/02
Filed: 1926-08-17
Abstract: 277,789. Whitaker, H. L. Aug. 17, 1926. Quoits.-A ring for use in a game comprises a length of rope, or like flexible material united at the two ends and encircled with leather thongs, or strips of other material, plaited round the rope, whereby the ring, although flexible, will when thrown with a degree of dexterity assume a circular or substantially circular formation during its flight. The ring A, Figs. 1 and 2, is preferably formed with a core a of cotton rope about ¢ to 1“ inches in diameter and of a length of about 6 to 20 feet. Thongs b of leather are plaited around the cotton core. Two groups of posts are provided such as that shown in Fig. 3. In playing the game, the players throw rings of various perimeters on to the posts and score points for successful throws according to the size of the ring.
Patent GB-299116-A (GB)
Title: Improvements in or relating to frames for show cards, pictures and the like
IPC: A47G1/06
Filed: 1927-08-02
Abstract: 299,116. Hudson, Scott, & Sons, Ltd., and Hudson, P. G. Aug. 2, 1927. Picture and like frames.-A frame for show cards, pictures, &c. is built up from side-members a, Fig. 1, each having an integral cornerpiece e. The side-members are made by bending a blank b, Fig. 3, provided with serrated edges c, into the form shown in Fig. 2. The members are cut to the required length, and placed on the edges of the card to be framed, the end of each member being inserted into the adjacent corner-piece, and the serrated edges c being pressed into the back of the card. Two sidemembers may be secured together before being placed in position.
Patent GB-640079-A (GB)
Title: Improvements in toys
IPC: A63H33/04
Filed: 1948-07-31
Abstract: 640,079. Toys. BIRKS, Ltd., E. A., and BIRKS, E. A. July 31, 1948, No. 20413. Drawings to Specification. [Class 132 (iii)] A toy assembled from components cut out of a sheet of cardboard has a hopper for granular material, e.g. salt, and a wheel adapted to be rotated by the salt falling from an outlet at the bottom of the hopper. The toy is in the form of a water mill, the hopper being formed by an inclined floor in the wheel house which overhangs the wheel. Part of the roof is hinged to allow salt to be placed in the wheel house from which it drops onto circumferential buckets on the wheel which hence rotates.
Patent GB-801514-A (GB)
Title: Improvements in bottle crating machines
IPC: B65B21/10
Filed: 1955-07-11
Abstract: 801,514. Driving apparatus for endless conveyers. WYLIE & CO., Ltd., M., and WYLIE, M. J. G. Oct. 12, 1956 [July 14, 1955], No. 20425/55. Class 78 (1). [Also in Group XVII] A bottle crating machine comprises a conveyer 9 for feeding crates downwardly step by step to receive a row of bottles 32 at each step from a series of reciprocating guides 37, the bottles being retained on the guides by a stop 45 which is raised to allow them to slide by gravity into the crate. Movement of the conveyer is controlled by a clutch 13 operated by cam and lever means 16a, 16d and by a stop 20 forming part of a bell-crank lever 19 oscillated by a cam 17. When the clutch releases the conveyer drive, the stop 20 is placed in the path of one of a series of pins 21 on a conveyer sprocket 7 to positively arrest crate movement. As the guides approach the end of their stroke the lever 19 is moved further so that a cam surface on the stop 20 operates on the pin 21 to reverse slightly the conveyer movement, thus raising the crate a small distance. This device enables the guides to enter the crate with ample clearance from its walls or partitions and then for the crate to move towards the guides so that the full bottle space is available.
Patent GB-134406-A (GB)
Title: Improvements in Retorts and Stills.
Inventor: PRENTICE JAMES
IPC: C11B3/12
Filed: 1918-12-09
Abstract: 134,406. Prentice, J. Dec. 9, 1918. Bulk evaporators.-Retorts or stills for tar, acids, &c. are constructed with bottoms which can be removed from inside the still after the cover has been taken off. The still consists of cylindrical sections 1, 2, and has an enlarged upper end 11 for the receipt of the lower end of the cover 12. The lower end of the section 1 is formed with a flange 3 on which the rim 5 of the dished bottom 4 rests. A packing-ring is placed on the flange 3 before the bottom is lowered into position. The space between the rim 5 and the inner wall of the section 1 may be filled with cement. Lugs 7 formed with holes for the receipt of lifting-hooks are provided on the bottom 4. When the bottom is provided with a spout 8, the fire-brick 9 is shaped, or made easily removable, to allow the spout to be withdrawn by tilting the bottom during its removal. Above the cover 12 is a removable grating 13 covered with insulating material.
Patent GB-404676-A (GB)
Title: Improvements in or relating to paper feeding mechanism for statistical machines
Filed: 1932-07-19
Abstract: 404,676. Statistical machines. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London. July 19, 1932, No. 20463. Convention date, July 20, 1931. [Class 106 (i).] In a record-controlled statistical machine for printing items and totals in a continuous strip, of the kind in which an auxiliary feed - mechanism blank feeds the strip after total printing, the paper strip is perforated at intervals equal to the length of sheet desired, said perforations stopping the blank feed. The feed motor FM in Fig. 1, drives the roller-platen through worm-gearing and a pawl- and-ratchet drive. The motor is in series with the lower contacts of a relay 54, and with cam contacts LP12 between main lines 10, 13. The circuit for the relay magnet 54 is through contacts 52, 53, on the platen-roller. Contact is only made when one of the holes 47, Fig. 3, on the forms 46 is opposite the contacts. Then the relay 54 is energized and the circuit through FM broken. When the hole 47 has passed the contact 52, the relay is still energized by the holding circuit through LP12 and the motor does not start again until the contacts LP12 open during a total taking cycle, when the web is blank fed until stopped by the next hole. For a machine having major and minor card-groups and totals, a relay 55 is provided and its contact may be shunted across contact LP12 by a switch 56. During minor totaltaking cycles relay 55 is not energized and its contacts remain closed and therefore the opening of contacts LP12 does not start the motor. When relay 55 is energized during a major cycle the contacts are broken and the motor is started. Blank-feed therefore only occurs after a major total. Specifications 299,014, [Class 106 (i), Calculating &c.], 314,086, [Class 100 (iv), Typewriters &c.], 359,037 ; and 371,415, [Group XVI], are referred to.
Patent GB-281577-A (GB)
Title: Improvements in or relating to apparatus for bending and otherwise treating metal sheets
IPC: B21D1/02
Filed: 1926-06-16
Abstract: 281,577. Davies, J. C., (Watkins, W. E.). June 16, 1926. Annealing. - In an apparatus for treating metal sheets, the sheets from the drying apparatus described in Specification 281,575, Class 34 (ii), Drying systems &c.], are fed through surfacing rollers to give them a finegrained surface and then through a coating mechanism 202 by which they are coated with a thin film of liquid, e.g. oil, which will be volatilized completely when they are passed through an annealing furnace. To ensure a proper distribution of the liquid on the sheets, adjustably mounted auxiliary rollers 205, 206 bear against the coating rollers 203, 204. The rollers 205, 206 are also mounted so that they can be reciprocated axially by the engagement of cam surfaces 211 at one end with rollers 212 carried by a support 213, the other ends of the rollers 205, 206 being forced by springs 209 on supports 210 against the roller 212. The coated sheets are arched by the engagement of serrated discs 214 with their upper surfaces and of serrated discs 216 with the central part of their under surfaces. The discs 214 are carried by stub shafts, mounted on beams 215 jouriaalod at one end on a shaft 218 and adjustably mounted art the other end on a beam 220, and the discs 216 by beams 217, the forward ends of which are mounted on a shaft 219 and the rear ends of which are adjustably mounted on the main frame at 221. The arched sheets are now delivered by converging conveyers 225, 226 to the annealing furnace described in Specification 281,578. The conveyers are adjustably mounted so that the distance between them may be varied to accommodate, sheets of different widths, Guide rollers 236, 237 are arranged near the ends of the conveyers so that, the delivery ends of the latter may be parallel to the travel of the sheets. Specification 281,349 also is referred to.
Patent GB-704763-A (GB)
Title: Improvements relating to flux-cored solder
IPC: B23K35/14
Filed: 1950-08-18
Abstract: 704,763. Soldering and brazing.MULTICORE SOLDERS, Ltd., ARBIB, R., and WILLCOX, T. W. J. June 27, 1951 [Aug. 18, 1950; Aug. 25, 1950], Nos. 20523/50 and 21077/50. Class 83 (4) In a flux cored solder wire the flux is arranged as at least five cores extending parallel to and in a zone around the longitudinal axis of the wire so that the maximum thickness of the zone in cross section, measured between the external surface of the wire and an imaginary circle touching the innermost points of the cross section of the flux cores, is less than the radius of the imaginary circle. In an embodiment five equidistantly spaced flux cores 2, Fig. 1, are arranged about the rod axis so that the ratio of the radius of the circle b to the distance between the circle b and the rod surface is at least 3:2. In a modification six cores are arranged in a  polygonal rod, each core being adjacent a corner. In a further embodiment five cores 2, Fig. 3, connected by webs 3 to form a hollow body are located between an inner solder metal body la and an outer solder metal skin 1b. The webs may form a polygonal hollow body. The cross section of the rod may be oval, polygonal, &c., with similarly shaped flux core. The solder in the said zone may have a lower melting point than that enveloped by the zone. According to the first Provisional Specification a hollow flux body of triangular or other shape and which may be formed by cores joined by Bux webs may be employed in a square, rectangular, regular or irregular polygonal rod. One or more cores of flux may be located within and/or without the hollow fluxbody.
Patent GB-1489288-A (GB)
Title: Coating compositions comprising aminoplast and polyester resins and their uses
IPC: C09D167/00
Filed: 1975-05-15
Abstract: 1489288 Polyester/aminoplast coating compositions CIBA-GEIGY AG 20 April 1976 [15 May 1975] 20553/75 Heading C3R Curable coating compositions comprise (where parts are by wt. based on resin-forming solids): 100 parts polyester (P), 5-75 parts aminoplast (A); and organic solvent(s) (S) for (P) and (A); where polyester (P) has #2 mercaptan groups per molecule directly attached to aliphatic C atoms, and #1 acyl residue containing a C# 8  aliphatic group; and aminoplast (A) urea contains, attached to amino N atom(s) or or of a polyamino - 1,3,5 - triazine, either #2 -CH 2 OR groups or #1 -CH 2 OR and #1 -CH 2 OH, where R is C 1-4  alkyl. In the examples, (P) is made from a mixture of: phthalic anhydride; coconut, soya, or castor oil fatty acid; glycerol; pantaerythritol; thiomalic and/or thioglycollic acid or 2-mercapto ethanol; and xylene. Rutile may be added to the composition, which may be used to coat tin-plated steel sheets, followed by heat-curing.
Patent GB-422865-A (GB)
Title: Improvements in the separation of coal or like dust from air
IPC: B04C9/00
Filed: 1933-07-21
Abstract: 422,865. Centrifugal dust-extractors. NORTON, B., Sandford Hall, Claverley, Staffordshire. July 21, 1933, Nos. 20637, 29003, and 34983. [Class 23] A plant for the separation of coal or like dust rom air, includes a cyclone separator 8 in which the incoming gas is sprayed with steam or atomized water to assist the separation. The steam or water is introduced through the nozzle 10, and the separated dust is washed into the launder 15 from the separator wall by a jet of water from the pipe 13. The clean gas passes to the atmosphere through the scroll 12. In the form shown the dust-laden gas is first passed through two dry cyclone separators 1, 6 and the separated dust is collected by the worm conveyer 4. In a modification the damp dust is removed from the separator wall by a scraper 20 mounted in bearings 21, 22 and rotated by the whirling gas. Specification 352,374 is referred to.
Patent GB-1080967-A (GB)
Title: Temperature responsive accelerator pump for a carburettor
IPC: F02B1/00
Filed: 1966-05-10
Abstract: 1,080,967. Spray carburetters. ACF INDUSTRIES Inc. May 10, 1966 [May 20, 1965(2)], No. 2 0638/66. Heading F1B. A by-pass 60 in. the plunger 52 of an accelerator pump is closed by a bi-metallic device 64 when cold and opened when the engine is warm to reduce the pump delivery. The device 64 comprises a curved disc with a by-pass orifice 65 therein. At low temperatures the disc seats on the rim of orifice 60 to close the by-pass. At a predetermined temperature the disc snaps over to a reversed curvature and on each pump stroke a portion of the fuel is by-passed through orifices 65, 60. The disc may carry a valve 63, Fig. 3  (not shown) to close orifice 60 and in Fig. 10 (not shown) a pair of discs (64), (82), co-operate to control the by-pass orifice 65. The pump may be a diaphragm pump.
Patent GB-1163829-A (GB)
Title: Method of increasing Molecular Weight
Inventor: DUCK EDWARD WILLIAM
IPC: C08F36/04
Filed: 1967-05-03
Abstract: 1,163,829. Diene polymerization. INTERNATIONAL SYNTHETIC RUBBER CO. Ltd. 2 May, 1968 [3 May, 1967], No. 20663/67. Heading C3P. Conjugated dienes are polymerized using a catalyst that includes a transition metal compound an an organometallic compound in the presence of an organic nitro compound, RCH 2 NO 2 , wherein R is hydrogen, alkyl, aryl or a substituted alkyl or aryl. The molar ratio of the transition metal to the organic nitro compound preferably lies within the range of 1: 0À1 to 1: 1000. The organic nitro compound is preferably added to the reaction mixture after all the catalyst components have been added. Suitable polymerization conditions are a temperature between - 50‹ and +150‹ C., a pressure of 1-50 atmospheres, and the use of a hydrocarbon solvent. The organic nitro compound is preferably a nitroparaffin of a chain length of 1-10 carbon atoms. The preferred monomer is 1,3-butadiene and the level of impurity, i.e. 1,2-butadiene, 3-methyl-1,2-butadiene and vinyl acetylenic compounds, should not exceed 1000 parts per million by weight. In the examples, butadiene is polymerized using a catalyst system comprising nickel di-isopropyl salicylate, boron trifluoride etherate and n-butyl lithium, in n-hexane, in the presence of nitro-methane, -propane or -ethane. The polymer was treated with an antioxidant and excess methanol/acetone. The polymer obtained was of a predominantly cis-structure, and the use of the organic nitro compound results in an increase in the molecular weight of the polymer.
Patent GB-275645-A (GB)
Title: Improvements in apparatus for opening textile fibres
IPC: D01G9/06
Filed: 1927-08-05
Abstract: 275,645. Setzer, R. Aug. 6, 1926, [Convention date]. Openers etc.; feeding openers &c.-Fibrous material is opened by two sets of pins 3 arranged to move in eccentric circular paths. On entering the material held by the feed rollers 14, the two sets of pins intermesh and are in line. As the devices carrying the pins rotabe the pins separate and draw out the tangled material. The action is dependent on the speed of separation of the sets of pins. The device may be applied to the discharge end of a hopper bale breaker, and a grid and baffles to regulate the suction to the cages be provided.